PIRSA:10060020

On the Microscopic Description of the Kerr Black Hole

Maloney, A. (2010). On the Microscopic Description of the Kerr Black Hole. Perimeter Institute. https://pirsa.org/10060020

Maloney, Alexander. On the Microscopic Description of the Kerr Black Hole. Perimeter Institute, Jun. 17, 2010, https://pirsa.org/10060020 

          @misc{ pirsa_PIRSA:10060020,
            doi = {10.48660/10060020},
            url = {https://pirsa.org/10060020},
            author = {Maloney, Alexander},
            keywords = {},
            language = {en},
            title = { On the Microscopic Description of the Kerr Black Hole},
            publisher = {Perimeter Institute},
            year = {2010},
            month = {jun},
            note = {PIRSA:10060020 see, \url{https://pirsa.org}}
          }

Alexander Maloney McGill University

DOI 10.48660/10060020
Collection
Talk Type Conference

Abstract

We describe recent progress on the quantum description of the Kerr black hole. Previous descriptions of black hole microstates have relied on the existence of near-horizon regions with conformal symmetry, and hence have only worked for extremal or supersymmetric black holes. We argue that the states of non-extremal black holes can also be understood in terms of a conformal symmetry, the difference being that this symmetry is not geometrically realized. Thus a Kerr black hole is an excited state of a conformal field theory. By making certain (natural) assumptions about the nature of this dual CFT we can compute its density of states. This gives a microscopic computation of the Bekenstein-Hawking entropy of a Kerr black hole with arbitrary mass and angular momentum.